*{
    margin: 0;
    padding: 0;
}
a{
    text-decoration: none;
}
li{
    list-style: none;
}
header{
    nav{
        height: 50px;
        .nav-box{
            max-width: 1000px;
            ul{
                margin-bottom: 0;
                li{
                    box-sizing: border-box;
                    padding: 0;
                    margin: 0;
                }
            }
        }
    }
}
